It’s best to feed them snails either way. They are at the top of the natural diet for puffers. Most lfs will give them away for free. Trimming teeth is a pain, I’m trying to do everything I can to avoid it. Bloodworms also aren’t the most nutritious, so they are going to want something with a little more benefit.
Figure 8s can last a long time in fresh, and are often kept in freshwater long term, but there are notable health issues and general well being of the fish is decreased. This leads to decreased lifespan.
Mostly vegetable matter like cucumber or algae. Anubias is a good plant to have with them as it is an algae farm itself.
